Sodium hydrogen carbonate for industrial use — Determination of sodium hydrogen carbonate content — Titrimetric method
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Cryolite, natural and artificial — Determination of sodium content — Flame emission and atomic absorption spectrophotometric methods
Cryolite (natural and artificial) — Determination of aluminium content — 8- Hydroxyquinoline gravimetric method
Sodium hydrogen carbonate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
Sodium chlorate for industrial use — Determination of matter insoluble in water
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Sodium chlorate for industrial use — Determination of moisture content — Gravimetric method
Sodium chlorate for industrial use — Determination of chloride content — Mercurimetric method
Potassium hydroxide for industrial use — Sampling — Test sample — Preparation of the main solution for carrying out certain determinations
Sodium chloride for industrial use — Determination of matter insoluble in water or in acid and preparation of principal solutions for other determinations
Sodium chloride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Sodium chloride for industrial use — Determination of halogens, expressed as chlorine — Mercurimetric method
Sodium chloride for industrial use — Determination of calcium and magnesium contents — EDTA complexometric methods
Sodium chloride for industrial use — Determination of the loss of mass at 110 degrees C
Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method
Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
